Proper way to charge 12v in parallel

[remdog_1]

First year using 2 12v batteries in parallel. Is it ok to leave in parallel and place on maintenance charger with positive on one battery and negative on other or is it better to use 2 separate chargers. Batteries are removed from camper.
Thanks for any info

[time2roll]

Good to go with one charger.

[Old-Biscuit]

ScottG wrote:
To answer your question; Yes.

:B

[ScottG]

To answer your question; Yes.

[RoyB]

Since this is a low current maintenance charge I would connect the two batteries in parallel and leave them be.

If you are wanting to charge the batteries up to their 90% charge state in a quick three hour charge time then you will need to use a smart mode charger using 14.4VDC with the capacity of at least 17-20Amps per battery to do this.

I also check the fluid levels on a regular basis on batteries I have sitting on the work bench being trickle charged...

Actually if you have your battery fully charged they will sit on your work bench for a long period of time before discharging any at all. A fully charged battery will read 12.6-7VDC on its terminals. You never want the battery voltage to drop below 12.0VDC just sitting there. I very seldom pull my batteries from the trailer but do have a BATTERY DISCONNECT to completely disconnect them from the circuits. Here in Virginia they sit there all winter long. I do check them occasionally however.

Roy Ken

[2oldman]

The only way 2 chargers are better than one is in the time it takes.

[riggsp]

Hook charger to 1 positive and 1 negative, set the charger to 12 volts...It won't matter which battery you connect to as long as both batteries are connected properly to each other.